git.sesse.net Git - vlc/blob - src/playlist/item.c

   1 /*****************************************************************************
   2  * item.c : Playlist item creation/deletion/add/removal functions
   3  *****************************************************************************
   4  * Copyright (C) 1999-2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *          Clément Stenac <zorglub@videolan.org>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24 #include <vlc/vlc.h>
  25 #include <assert.h>
  26 #include <vlc_playlist.h>
  27 #include "playlist_internal.h"
  28
  29 static void AddItem( playlist_t *p_playlist, playlist_item_t *p_item,
  30                      playlist_item_t *p_node, int i_mode, int i_pos );
  31 static void GoAndPreparse( playlist_t *p_playlist, int i_mode,
  32                            playlist_item_t *, playlist_item_t * );
  33 static void ChangeToNode( playlist_t *p_playlist, playlist_item_t *p_item );
  34 static int DeleteInner( playlist_t * p_playlist, playlist_item_t *p_item,
  35                         vlc_bool_t b_stop );
  36
  37 /*****************************************************************************
  38  * An input item has gained a subitem (Event Callback)
  39  *****************************************************************************/
  40 static void input_item_subitem_added( const vlc_event_t * p_event,
  41                                       void * user_data )
  42 {
  43     playlist_t * p_playlist = user_data;
  44     input_item_t * p_parent, * p_child;
  45     vlc_bool_t b_play = var_CreateGetBool( p_playlist, "playlist-autostart" );
  46     playlist_item_t *p_item_in_category;
  47     playlist_item_t *p_current;
  48
  49     p_parent = p_event->p_obj;
  50     p_child = p_event->u.input_item_subitem_added.p_new_child;
  51
  52     p_current = playlist_ItemGetByInput( p_playlist, p_parent, VLC_FALSE );
  53     if( p_current->i_children == -1 )
  54         p_item_in_category = playlist_ItemToNode( p_playlist, p_current,
  55                                               VLC_FALSE );
  56     else
  57         p_item_in_category = p_current;
  58     p_item_in_category = p_current;
  59     b_play = b_play && p_current == p_playlist->status.p_item;
  60
  61     playlist_NodeAddInput( p_playlist, p_child, p_item_in_category,
  62         PLAYLIST_APPEND | PLAYLIST_SPREPARSE , PLAYLIST_END,
  63         VLC_FALSE );
  64
  65     if( b_play )
  66     {
  67         playlist_Control( p_playlist, PLAYLIST_VIEWPLAY,
  68                           VLC_TRUE, p_item_in_category, NULL );
  69         vlc_object_release( p_playlist );
  70     }
  71 }
  72
  73 /*****************************************************************************
  74  * Listen to vlc_InputItemAddSubItem event
  75  *****************************************************************************/
  76 static void install_input_item_observer( playlist_t * p_playlist,
  77                                          input_item_t * p_input )
  78 {
  79     msg_Dbg( p_playlist, "Listening to %s with %p", p_input->psz_name, p_playlist);
  80
  81     vlc_event_attach( &p_input->event_manager, vlc_InputItemSubItemAdded,
  82                       input_item_subitem_added,
  83                       p_playlist );
  84 }
  85
  86 static void uninstall_input_item_observer( playlist_t * p_playlist,
  87                                            input_item_t * p_input )
  88 {
  89     msg_Dbg( p_playlist, "Not Listening to %s with %p", p_input->psz_name, p_playlist);
  90
  91     vlc_event_detach( &p_input->event_manager, vlc_InputItemSubItemAdded,
  92                       input_item_subitem_added,
  93                       p_playlist );
  94
  95 }
  96
  97 /*****************************************************************************
  98  * Playlist item creation
  99  *****************************************************************************/
 100 playlist_item_t * playlist_ItemNewWithType( vlc_object_t *p_obj,
 101                                             const char *psz_uri,
 102                                             const char *psz_name,
 103                                             int i_options,
 104                                             const char *const *ppsz_options,
 105                                             int i_duration, int i_type )
 106 {
 107     input_item_t *p_input;
 108     if( psz_uri == NULL ) return NULL;
 109     p_input = input_ItemNewWithType( p_obj, psz_uri,
 110                                      psz_name, i_options, ppsz_options,
 111                                      i_duration, i_type );
 112     return playlist_ItemNewFromInput( p_obj, p_input );
 113 }
 114
 115 playlist_item_t *__playlist_ItemNewFromInput( vlc_object_t *p_obj,
 116                                               input_item_t *p_input )
 117 {
 118     DECMALLOC_NULL( p_item, playlist_item_t );
 119     playlist_t *p_playlist = p_obj->p_libvlc->p_playlist;
 120
 121     p_item->p_input = p_input;
 122     vlc_gc_incref( p_item->p_input );
 123
 124     p_item->i_id = ++p_playlist->i_last_playlist_id;
 125
 126     p_item->p_parent = NULL;
 127     p_item->i_children = -1;
 128     p_item->pp_children = NULL;
 129     p_item->i_flags = 0;
 130     p_item->p_playlist = p_playlist;
 131
 132     install_input_item_observer( p_playlist, p_input );
 133
 134     return p_item;
 135 }
 136
 137 /***************************************************************************
 138  * Playlist item destruction
 139  ***************************************************************************/
 140
 141 /** Delete a playlist item and detach its input item */
 142 int playlist_ItemDelete( playlist_item_t *p_item )
 143 {
 144     uninstall_input_item_observer( p_item->p_playlist, p_item->p_input );
 145
 146     vlc_gc_decref( p_item->p_input );
 147     free( p_item );
 148     return VLC_SUCCESS;
 149 }
 150
 151 /** Remove an input item when it appears from a root playlist item */
 152 static int DeleteFromInput( playlist_t *p_playlist, int i_input_id,
 153                             playlist_item_t *p_root, vlc_bool_t b_do_stop )
 154 {
 155     int i;
 156     for( i = 0 ; i< p_root->i_children ; i++ )
 157     {
 158         if( p_root->pp_children[i]->i_children == -1 &&
 159             p_root->pp_children[i]->p_input->i_id == i_input_id )
 160         {
 161             DeleteInner( p_playlist, p_root->pp_children[i], b_do_stop );
 162             return VLC_SUCCESS;
 163         }
 164         else if( p_root->pp_children[i]->i_children >= 0 )
 165         {
 166             int i_ret = DeleteFromInput( p_playlist, i_input_id,
 167                                          p_root->pp_children[i], b_do_stop );
 168             if( i_ret == VLC_SUCCESS ) return VLC_SUCCESS;
 169         }
 170     }
 171     return VLC_EGENERIC;
 172 }
 173
 174 /** Remove an input item from ONELEVEL and CATEGORY */
 175 int playlist_DeleteFromInput( playlist_t *p_playlist, int i_input_id,
 176                               vlc_bool_t b_locked )
 177 {
 178     int i_ret1, i_ret2;
 179     if( !b_locked ) PL_LOCK;
 180     i_ret1 = DeleteFromInput( p_playlist, i_input_id,
 181                              p_playlist->p_root_category, VLC_TRUE );
 182     i_ret2 = DeleteFromInput( p_playlist, i_input_id,
 183                      p_playlist->p_root_onelevel, VLC_TRUE );
 184     if( !b_locked ) PL_UNLOCK;
 185     return ( i_ret1 == VLC_SUCCESS || i_ret2 == VLC_SUCCESS ) ?
 186                             VLC_SUCCESS : VLC_ENOITEM;
 187 }
 188
 189 void playlist_Clear( playlist_t * p_playlist, vlc_bool_t b_locked )
 190 {
 191     if( !b_locked ) PL_LOCK;
 192     playlist_NodeEmpty( p_playlist, p_playlist->p_root_category, VLC_TRUE );
 193     playlist_NodeEmpty( p_playlist, p_playlist->p_root_onelevel, VLC_TRUE );
 194     if( !b_locked ) PL_UNLOCK;
 195 }
 196
 197 /** Remove a playlist item from the playlist, given its id
 198  * This function is to be used only by the playlist */
 199 int playlist_DeleteFromItemId( playlist_t *p_playlist, int i_id )
 200 {
 201     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_id,
 202                                                     VLC_TRUE );
 203     if( !p_item ) return VLC_EGENERIC;
 204     return DeleteInner( p_playlist, p_item, VLC_TRUE );
 205 }
 206
 207 /***************************************************************************
 208  * Playlist item addition
 209  ***************************************************************************/
 210 /** Add an item to the playlist or the media library
 211  * \param p_playlist the playlist to add into
 212  * \param psz_uri the mrl to add to the playlist
 213  * \param psz_name a text giving a name or description of this item
 214  * \param i_mode the mode used when adding
 215  * \param i_pos the position in the playlist where to add. If this is
 216  *        PLAYLIST_END the item will be added at the end of the playlist
 217  *        regardless of its size
 218  * \param b_playlist TRUE for playlist, FALSE for media library
 219  * \return The id of the playlist item
 220  */
 221 int playlist_Add( playlist_t *p_playlist, const char *psz_uri,
 222                   const char *psz_name, int i_mode, int i_pos,
 223                   vlc_bool_t b_playlist, vlc_bool_t b_locked )
 224 {
 225     return playlist_AddExt( p_playlist, psz_uri, psz_name,
 226                             i_mode, i_pos, -1, NULL, 0, b_playlist, b_locked );
 227 }
 228
 229 /**
 230  * Add a MRL into the playlist or the media library, duration and options given
 231  *
 232  * \param p_playlist the playlist to add into
 233  * \param psz_uri the mrl to add to the playlist
 234  * \param psz_name a text giving a name or description of this item
 235  * \param i_mode the mode used when adding
 236  * \param i_pos the position in the playlist where to add. If this is
 237  *        PLAYLIST_END the item will be added at the end of the playlist
 238  *        regardless of its size
 239  * \param i_duration length of the item in milliseconds.
 240  * \param ppsz_options an array of options
 241  * \param i_options the number of options
 242  * \param b_playlist TRUE for playlist, FALSE for media library
 243  * \return The id of the playlist item
 244 */
 245 int playlist_AddExt( playlist_t *p_playlist, const char * psz_uri,
 246                      const char *psz_name, int i_mode, int i_pos,
 247                      mtime_t i_duration, const char *const *ppsz_options,
 248                      int i_options, vlc_bool_t b_playlist, vlc_bool_t b_locked )
 249 {
 250     int i_ret;
 251     input_item_t *p_input = input_ItemNewExt( p_playlist, psz_uri, psz_name,
 252                                               i_options, ppsz_options,
 253                                               i_duration );
 254
 255     i_ret = playlist_AddInput( p_playlist, p_input, i_mode, i_pos, b_playlist,
 256                                b_locked );
 257     if( i_ret == VLC_SUCCESS )
 258         return p_input->i_id;
 259     return -1;
 260 }
 261
 262 /** Add an input item to the playlist node */
 263 int playlist_AddInput( playlist_t* p_playlist, input_item_t *p_input,
 264                        int i_mode, int i_pos, vlc_bool_t b_playlist,
 265                        vlc_bool_t b_locked )
 266 {
 267     playlist_item_t *p_item_cat, *p_item_one;
 268
 269     if( !p_playlist->b_doing_ml )
 270         PL_DEBUG( "adding item `%s' ( %s )", p_input->psz_name,
 271                                              p_input->psz_uri );
 272
 273     if( !b_locked ) PL_LOCK;
 274
 275     /* Add to ONELEVEL */
 276     p_item_one = playlist_ItemNewFromInput( p_playlist, p_input );
 277     if( p_item_one == NULL ) return VLC_ENOMEM;
 278     AddItem( p_playlist, p_item_one,
 279              b_playlist ? p_playlist->p_local_onelevel :
 280                           p_playlist->p_ml_onelevel , i_mode, i_pos );
 281
 282     /* Add to CATEGORY */
 283     p_item_cat = playlist_ItemNewFromInput( p_playlist, p_input );
 284     if( p_item_cat == NULL ) return VLC_ENOMEM;
 285     AddItem( p_playlist, p_item_cat,
 286              b_playlist ? p_playlist->p_local_category :
 287                           p_playlist->p_ml_category , i_mode, i_pos );
 288
 289     GoAndPreparse( p_playlist, i_mode, p_item_cat, p_item_one );
 290
 291     if( !b_locked ) PL_UNLOCK;
 292     return VLC_SUCCESS;
 293 }
 294
 295 /** Add an input item to p_direct_parent in the category tree, and to the
 296  *  matching top category in onelevel **/
 297 int playlist_BothAddInput( playlist_t *p_playlist,
 298                            input_item_t *p_input,
 299                            playlist_item_t *p_direct_parent,
 300                            int i_mode, int i_pos,
 301                            int *i_cat, int *i_one, vlc_bool_t b_locked )
 302 {
 303     playlist_item_t *p_item_cat, *p_item_one, *p_up;
 304     int i_top;
 305     assert( p_input );
 306     if( !b_locked ) PL_LOCK;
 307
 308     /* Add to category */
 309     p_item_cat = playlist_ItemNewFromInput( p_playlist, p_input );
 310     if( p_item_cat == NULL ) return VLC_ENOMEM;
 311     AddItem( p_playlist, p_item_cat, p_direct_parent, i_mode, i_pos );
 312
 313     /* Add to onelevel */
 314     /** \todo make a faster case for ml import */
 315     p_item_one = playlist_ItemNewFromInput( p_playlist, p_input );
 316     if( p_item_one == NULL ) return VLC_ENOMEM;
 317
 318     p_up = p_direct_parent;
 319     while( p_up->p_parent != p_playlist->p_root_category )
 320     {
 321         p_up = p_up->p_parent;
 322     }
 323     for( i_top = 0 ; i_top < p_playlist->p_root_onelevel->i_children; i_top++ )
 324     {
 325         if( p_playlist->p_root_onelevel->pp_children[i_top]->p_input->i_id ==
 326                              p_up->p_input->i_id )
 327         {
 328             AddItem( p_playlist, p_item_one,
 329                      p_playlist->p_root_onelevel->pp_children[i_top],
 330                      i_mode, i_pos );
 331             break;
 332         }
 333     }
 334     GoAndPreparse( p_playlist, i_mode, p_item_cat, p_item_one );
 335
 336     if( i_cat ) *i_cat = p_item_cat->i_id;
 337     if( i_one ) *i_one = p_item_one->i_id;
 338
 339     if( !b_locked ) PL_UNLOCK;
 340     return VLC_SUCCESS;
 341 }
 342
 343 /** Add an input item to a given node */
 344 playlist_item_t * playlist_NodeAddInput( playlist_t *p_playlist,
 345                                          input_item_t *p_input,
 346                                          playlist_item_t *p_parent,
 347                                          int i_mode, int i_pos,
 348                                          vlc_bool_t b_locked )
 349 {
 350     playlist_item_t *p_item;
 351     assert( p_input );
 352     assert( p_parent && p_parent->i_children != -1 );
 353
 354     if( !b_locked ) PL_LOCK;
 355
 356     p_item = playlist_ItemNewFromInput( p_playlist, p_input );
 357     if( p_item == NULL ) return NULL;
 358     AddItem( p_playlist, p_item, p_parent, i_mode, i_pos );
 359
 360     if( !b_locked ) PL_UNLOCK;
 361
 362     return p_item;
 363 }
 364
 365 /*****************************************************************************
 366  * Playlist item misc operations
 367  *****************************************************************************/
 368
 369 /**
 370  * Transform an item to a node. Return the node in the category tree, or NULL
 371  * if not found there
 372  * This function must be entered without the playlist lock
 373  */
 374 playlist_item_t *playlist_ItemToNode( playlist_t *p_playlist,
 375                                       playlist_item_t *p_item,
 376                                       vlc_bool_t b_locked )
 377 {
 378
 379     playlist_item_t *p_item_in_category;
 380     /* What we do
 381      * Find the input in CATEGORY.
 382      *  - If we find it
 383      *    - change it to node
 384      *    - we'll return it at the end
 385      *    - If we are a direct child of onelevel root, change to node, else
 386      *      delete the input from ONELEVEL
 387      *  - If we don't find it, just change to node (we are probably in VLM)
 388      *    and return NULL
 389      *
 390      * If we were in ONELEVEL, we thus retrieve the node in CATEGORY (will be
 391      * useful for later BothAddInput )
 392      */
 393
 394     if( !b_locked ) PL_LOCK;
 395
 396     /* Fast track the media library, no time to loose */
 397     if( p_item == p_playlist->p_ml_category ) {
 398         if( !b_locked ) PL_UNLOCK;
 399         return p_item;
 400     }
 401
 402     /** \todo First look if we don't already have it */
 403     p_item_in_category = playlist_ItemFindFromInputAndRoot(
 404                                             p_playlist, p_item->p_input->i_id,
 405                                             p_playlist->p_root_category,
 406                                             VLC_TRUE );
 407
 408     if( p_item_in_category )
 409     {
 410         playlist_item_t *p_item_in_one = playlist_ItemFindFromInputAndRoot(
 411                                             p_playlist, p_item->p_input->i_id,
 412                                             p_playlist->p_root_onelevel,
 413                                             VLC_TRUE );
 414         /* We already have it, and there is nothing more to do */
 415         ChangeToNode( p_playlist, p_item_in_category );
 416
 417         if( !p_item_in_one )
 418             return p_item_in_category;
 419
 420         /* Item in one is a root, change it to node */
 421         if( p_item_in_one->p_parent == p_playlist->p_root_onelevel )
 422             ChangeToNode( p_playlist, p_item_in_one );
 423         else
 424         {
 425             DeleteFromInput( p_playlist, p_item_in_one->p_input->i_id,
 426                              p_playlist->p_root_onelevel, VLC_FALSE );
 427         }
 428         p_playlist->b_reset_currently_playing = VLC_TRUE;
 429         vlc_cond_signal( &p_playlist->object_wait );
 430         var_SetInteger( p_playlist, "item-change", p_item_in_category->
 431                                                         p_input->i_id );
 432         if( !b_locked ) PL_UNLOCK;
 433         return p_item_in_category;
 434     }
 435     else
 436     {
 437         ChangeToNode( p_playlist, p_item );
 438         if( !b_locked ) PL_UNLOCK;
 439         return NULL;
 440     }
 441 }
 442
 443 /** Find an item within a root, given its input id.
 444  * \return the first found item, or NULL if not found
 445  */
 446 playlist_item_t *playlist_ItemFindFromInputAndRoot( playlist_t *p_playlist,
 447                                                     int i_input_id,
 448                                                     playlist_item_t *p_root,
 449                                                     vlc_bool_t b_items_only )
 450 {
 451     int i;
 452     for( i = 0 ; i< p_root->i_children ; i++ )
 453     {
 454         if( ( b_items_only ? p_root->pp_children[i]->i_children == -1 : 1 ) &&
 455             p_root->pp_children[i]->p_input->i_id == i_input_id )
 456         {
 457             return p_root->pp_children[i];
 458         }
 459         else if( p_root->pp_children[i]->i_children >= 0 )
 460         {
 461             playlist_item_t *p_search =
 462                  playlist_ItemFindFromInputAndRoot( p_playlist, i_input_id,
 463                                                     p_root->pp_children[i],
 464                                                     b_items_only );
 465             if( p_search ) return p_search;
 466         }
 467     }
 468     return NULL;
 469 }
 470
 471
 472 static int TreeMove( playlist_t *p_playlist, playlist_item_t *p_item,
 473                      playlist_item_t *p_node, int i_newpos )
 474 {
 475     int j;
 476     playlist_item_t *p_detach = p_item->p_parent;
 477     (void)p_playlist;
 478
 479     if( p_node->i_children == -1 ) return VLC_EGENERIC;
 480
 481     for( j = 0; j < p_detach->i_children; j++ )
 482     {
 483          if( p_detach->pp_children[j] == p_item ) break;
 484     }
 485     REMOVE_ELEM( p_detach->pp_children, p_detach->i_children, j );
 486
 487     /* Attach to new parent */
 488     INSERT_ELEM( p_node->pp_children, p_node->i_children, i_newpos, p_item );
 489     p_item->p_parent = p_node;
 490
 491     return VLC_SUCCESS;
 492 }
 493
 494 /**
 495  * Moves an item
 496  *
 497  * This function must be entered with the playlist lock
 498  *
 499  * \param p_playlist the playlist
 500  * \param p_item the item to move
 501  * \param p_node the new parent of the item
 502  * \param i_newpos the new position under this new parent
 503  * \return VLC_SUCCESS or an error
 504  */
 505 int playlist_TreeMove( playlist_t * p_playlist, playlist_item_t *p_item,
 506                        playlist_item_t *p_node, int i_newpos )
 507 {
 508     int i_ret;
 509     /* Drop on a top level node. Move in the two trees */
 510     if( p_node->p_parent == p_playlist->p_root_category ||
 511         p_node->p_parent == p_playlist->p_root_onelevel )
 512     {
 513         /* Fixme: avoid useless lookups but we need some clean helpers */
 514         {
 515             /* Fixme: if we try to move a node on a top-level node, it will
 516              * fail because the node doesn't exist in onelevel and we will
 517              * do some shit in onelevel. We should recursively move all items
 518              * within the node */
 519             playlist_item_t *p_node_onelevel;
 520             playlist_item_t *p_item_onelevel;
 521             p_node_onelevel = playlist_ItemFindFromInputAndRoot( p_playlist,
 522                                                 p_node->p_input->i_id,
 523                                                 p_playlist->p_root_onelevel,
 524                                                 VLC_FALSE );
 525             p_item_onelevel = playlist_ItemFindFromInputAndRoot( p_playlist,
 526                                                 p_item->p_input->i_id,
 527                                                 p_playlist->p_root_onelevel,
 528                                                 VLC_FALSE );
 529             if( p_node_onelevel && p_item_onelevel )
 530                 TreeMove( p_playlist, p_item_onelevel, p_node_onelevel, 0 );
 531         }
 532         {
 533             playlist_item_t *p_node_category;
 534             playlist_item_t *p_item_category;
 535             p_node_category = playlist_ItemFindFromInputAndRoot( p_playlist,
 536                                                 p_node->p_input->i_id,
 537                                                 p_playlist->p_root_category,
 538                                                 VLC_FALSE );
 539             p_item_category = playlist_ItemFindFromInputAndRoot( p_playlist,
 540                                                 p_item->p_input->i_id,
 541                                                 p_playlist->p_root_category,
 542                                                 VLC_FALSE );
 543             if( p_node_category && p_item_category )
 544                 TreeMove( p_playlist, p_item_category, p_node_category, 0 );
 545         }
 546         i_ret = VLC_SUCCESS;
 547     }
 548     else
 549         i_ret = TreeMove( p_playlist, p_item, p_node, i_newpos );
 550     p_playlist->b_reset_currently_playing = VLC_TRUE;
 551     vlc_cond_signal( &p_playlist->object_wait );
 552     return i_ret;
 553 }
 554
 555 /** Send a notification that an item has been added to a node */
 556 void playlist_SendAddNotify( playlist_t *p_playlist, int i_item_id,
 557                              int i_node_id, vlc_bool_t b_signal )
 558 {
 559     vlc_value_t val;
 560     playlist_add_t *p_add = (playlist_add_t *)malloc(sizeof( playlist_add_t));
 561     p_add->i_item = i_item_id;
 562     p_add->i_node = i_node_id;
 563     val.p_address = p_add;
 564     p_playlist->b_reset_currently_playing = VLC_TRUE;
 565     if( b_signal )
 566         vlc_cond_signal( &p_playlist->object_wait );
 567     var_Set( p_playlist, "item-append", val );
 568     free( p_add );
 569 }
 570
 571 /*****************************************************************************
 572  * Playlist item accessors
 573  *****************************************************************************/
 574
 575 /** Set the name of a playlist item */
 576 int playlist_ItemSetName( playlist_item_t *p_item, const char *psz_name )
 577 {
 578     if( psz_name && p_item )
 579     {
 580         input_ItemSetName( p_item->p_input, psz_name );
 581         return VLC_SUCCESS;
 582     }
 583     return VLC_EGENERIC;
 584 }
 585
 586 /***************************************************************************
 587  * The following functions are local
 588  ***************************************************************************/
 589
 590 /* Enqueue an item for preparsing, and play it, if needed */
 591 static void GoAndPreparse( playlist_t *p_playlist, int i_mode,
 592                            playlist_item_t *p_item_cat,
 593                            playlist_item_t *p_item_one )
 594 {
 595     if( (i_mode & PLAYLIST_GO ) )
 596     {
 597         playlist_item_t *p_parent = p_item_one;
 598         playlist_item_t *p_toplay = NULL;
 599         while( p_parent )
 600         {
 601             if( p_parent == p_playlist->p_root_category )
 602             {
 603                 p_toplay = p_item_cat; break;
 604             }
 605             else if( p_parent == p_playlist->p_root_onelevel )
 606             {
 607                 p_toplay = p_item_one; break;
 608             }
 609             p_parent = p_parent->p_parent;
 610         }
 611         assert( p_toplay );
 612         p_playlist->request.b_request = VLC_TRUE;
 613         p_playlist->request.i_skip = 0;
 614         p_playlist->request.p_item = p_toplay;
 615         if( p_playlist->p_input )
 616             input_StopThread( p_playlist->p_input );
 617         p_playlist->request.i_status = PLAYLIST_RUNNING;
 618         vlc_cond_signal( &p_playlist->object_wait );
 619     }
 620     /* Preparse if PREPARSE or SPREPARSE & not enough meta */
 621     if( p_playlist->b_auto_preparse &&
 622           (i_mode & PLAYLIST_PREPARSE ||
 623           ( i_mode & PLAYLIST_SPREPARSE &&
 624             ( EMPTY_STR( input_item_GetArtist( p_item_cat->p_input ) ) ||
 625             ( EMPTY_STR( input_item_GetAlbum( p_item_cat->p_input ) ) ) )
 626           ) ) )
 627         playlist_PreparseEnqueue( p_playlist, p_item_cat->p_input );
 628     /* If we already have it, signal it */
 629     else if( !EMPTY_STR( input_item_GetArtist( p_item_cat->p_input ) ) &&
 630              !EMPTY_STR( input_item_GetAlbum( p_item_cat->p_input ) ) )
 631         input_item_SetPreparsed( p_item_cat->p_input, VLC_TRUE );
 632 }
 633
 634 /* Add the playlist item to the requested node and fire a notification */
 635 static void AddItem( playlist_t *p_playlist, playlist_item_t *p_item,
 636                      playlist_item_t *p_node, int i_mode, int i_pos )
 637 {
 638     ARRAY_APPEND(p_playlist->items, p_item);
 639     ARRAY_APPEND(p_playlist->all_items, p_item);
 640     p_playlist->i_enabled ++;
 641
 642     if( i_pos == PLAYLIST_END )
 643         playlist_NodeAppend( p_playlist, p_item, p_node );
 644     else
 645         playlist_NodeInsert( p_playlist, p_item, p_node, i_pos );
 646
 647     if( !p_playlist->b_doing_ml )
 648         playlist_SendAddNotify( p_playlist, p_item->i_id, p_node->i_id,
 649                                  !( i_mode & PLAYLIST_NO_REBUILD ) );
 650 }
 651
 652 /* Actually convert an item to a node */
 653 static void ChangeToNode( playlist_t *p_playlist, playlist_item_t *p_item )
 654 {
 655     int i;
 656     if( p_item->i_children == -1 )
 657         p_item->i_children = 0;
 658
 659     /* Remove it from the array of available items */
 660     ARRAY_BSEARCH( p_playlist->items,->i_id, int, p_item->i_id, i );
 661     if( i != -1 )
 662         ARRAY_REMOVE( p_playlist->items, i );
 663 }
 664
 665 /* Do the actual removal */
 666 static int DeleteInner( playlist_t * p_playlist, playlist_item_t *p_item,
 667                         vlc_bool_t b_stop )
 668 {
 669     int i;
 670     int i_id = p_item->i_id;
 671     vlc_bool_t b_delay_deletion = VLC_FALSE;
 672
 673     if( p_item->i_children > -1 )
 674     {
 675         return playlist_NodeDelete( p_playlist, p_item, VLC_TRUE, VLC_FALSE );
 676     }
 677     p_playlist->b_reset_currently_playing = VLC_TRUE;
 678     var_SetInteger( p_playlist, "item-deleted", i_id );
 679
 680     /* Remove the item from the bank */
 681     ARRAY_BSEARCH( p_playlist->all_items,->i_id, int, i_id, i );
 682     if( i != -1 )
 683         ARRAY_REMOVE( p_playlist->all_items, i );
 684
 685     /* Check if it is the current item */
 686     if( p_playlist->status.p_item == p_item )
 687     {
 688         /* Hack we don't call playlist_Control for lock reasons */
 689         if( b_stop )
 690         {
 691             p_playlist->request.i_status = PLAYLIST_STOPPED;
 692             p_playlist->request.b_request = VLC_TRUE;
 693             p_playlist->request.p_item = NULL;
 694             msg_Info( p_playlist, "stopping playback" );
 695             vlc_cond_signal( &p_playlist->object_wait );
 696         }
 697         b_delay_deletion = VLC_TRUE;
 698     }
 699
 700     PL_DEBUG( "deleting item `%s'", p_item->p_input->psz_name );
 701
 702     /* Remove the item from its parent */
 703     playlist_NodeRemoveItem( p_playlist, p_item, p_item->p_parent );
 704
 705     if( !b_delay_deletion )
 706         playlist_ItemDelete( p_item );
 707     else
 708     {
 709         PL_DEBUG( "marking %s for further deletion", PLI_NAME( p_item ) );
 710         p_item->i_flags |= PLAYLIST_REMOVE_FLAG;
 711     }
 712
 713     return VLC_SUCCESS;
 714 }